Dear Fsl users, I am trying to run a TBSS analysis on the L1 data after running it on FA maps using FSL 4. At the end it creates the all_L1 file but fails to create the rest(the skeletonized L1) and gives me this error: merging all upsampled L1 images into single 4D image projecting all_L1 onto mean FA skeleton terminate called after throwing an instance of 'std::bad_alloc' what(): St9bad_alloc /usr/lib/fsl/tbss_non_FA: line 104: 7343 Aborted ${FSLDIR}/bin/tbss_skeleton -i mean_FA -p $thresh mean_FA_skeleton_mask_dst ${FSLDIR}/data/standard/LowerCingulum_1mm all_FA all_${ALTIM}_skeletonised -a all_$ALTIM now run stats - for example: randomise -i all_L1_skeletonised -o tbss_L1 -m mean_FA_skeleton_mask -d design.mat -t design.con -n 5000 -c 3 -V (after generating design.mat and design.con) I am using one of my subjects as a target for registration. It worked fine for the FA data. Is that related at all? can you please help? thanks a lot! Paul